Asked Nov 1, 2019
A train locomotive pulls a train with a mass of 1.20 ✕ 107 kg on level rails. The locomotive exerts a constant force of 7.60 ✕ 105 N on the train. How much time does it take to increase the speed of the train from rest to 62.0 km/h? (Ignore any resistance force from the rails on the wheels of the train. Enter your answer in minutes.)



Expert Answer

Step 1

Given information:


Image Transcriptionclose

F 7.6x10 N m 1.2x 10 kg u0 km/h v= 62 km/h

Step 2

Here, F is the constant force acting on the train, m is the mass of the train and u and v are the initial and final velocities of the train respective...


Image Transcriptionclose

F -mа F а — т (7.6х10° N) а 3 (1.2x10 kg) а 3D0.063 m/s?


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: An “infinitely” long wire is bent into the shape seen below.  It carries a current of 14 Amps in the...

A: Given values:Current in the wire, I = 14 ARadius of the curved part of the wire, a = 3.0 cm = 0.03 m...


Q: Question in image. Disregard the pen markings plz.

A: Write the expression for stopping potential


Q: T Sinoo ome os//

A: Let vu be the velocity of the ice cube at upper surface of the pipe, vb be the velocity of ice cube ...


Q: When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This ex...

A: The moment of inertia of a sphere having radius R.


Q: How much energy is required to lift a 10 kg rock from the surface of the Earth and place it in a cir...

A: Click to see the answer


Q: whats the force of a boat if its going if its current is going up 400n and the paddlewheel goes to t...

A: Net force is given by,


Q: Hi, I am in physics I and they have the question of what is the angular displacement between 5s and ...

A: From the given graph, write the expression for the straight line from 10s to 20s.Write the given val...


Q: A planet similar to the Earth has a radius 4.3 × 106 m and has an acceleration of gravity of 10 m/s ...

A: Normal acceleration will be same as acceleration due to gravity of the planet.For an object to be in...


Q: At the centre of a circular ice rink, a 82.0 kg ice skater moving 2.25 m/s north hits and grabs onto...

A: Given,